A microcontroller is a microprocessor optimised to be used to control electronic
equipment. Microcontrollers represent the vast majority of all computer chips sold, over
50% are "simple" controllers, and another 20% are more specialized decipline
processors. While you may have one or two general-purpose microprocessors in your
house (you're using one to read this), you likely have somewhere between one and two
dozen microcontrollers. They can be found in almost any electrical device, washing
machines, microwave ovens, telephones etc.
A microcontroller includes CPU, memory for the program (ROM), memory for data
(RAM), I/O lines to communicate with peripherals and complementary resources, all
this in a closed chip. A microcontroller differs from a standalone CPU, because the first
one generally is quite easy to make into a working computer, with a minimum of external
support chips. The idea is that the microcontroller will be placed in the device to control,
hooked up to power and any information it needs, and that's that.
equipment. Microcontrollers represent the vast majority of all computer chips sold, over
50% are "simple" controllers, and another 20% are more specialized decipline
processors. While you may have one or two general-purpose microprocessors in your
house (you're using one to read this), you likely have somewhere between one and two
dozen microcontrollers. They can be found in almost any electrical device, washing
machines, microwave ovens, telephones etc.
A microcontroller includes CPU, memory for the program (ROM), memory for data
(RAM), I/O lines to communicate with peripherals and complementary resources, all
this in a closed chip. A microcontroller differs from a standalone CPU, because the first
one generally is quite easy to make into a working computer, with a minimum of external
support chips. The idea is that the microcontroller will be placed in the device to control,
hooked up to power and any information it needs, and that's that.
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